第二次世界大戰後,美國、前蘇聯及其他國家在1951-1963年之間分別在地面上進行數以百計的核試,402Please respect copyright.PENANAz1Fg0tMGkg402Please respect copyright.PENANAyoyWyJbs1v
402Please respect copyright.PENANAHboZoXYDZq
直至1963年大家互相簽署了停止核試條約,地面引爆核試才得以終止進行;雖然1960-1970年間中國及非洲仍有進行少量微型地面核試。402Please respect copyright.PENANADoBRBfq6Hn
402Please respect copyright.PENANAL6pfJkP4nY
地面核試,無疑會為大自然界帶來影響。402Please respect copyright.PENANA1tekOpacIP
其中一隻名為137Cs的幅射性原子,不但能對生物帶來傷害,且具有水溶性特質,其半衰期亦達30.2年之多;402Please respect copyright.PENANARcjxE7s0HH
亦即是說渡過30.2年之後,其濃度才會自然地減半。402Please respect copyright.PENANAGzj6q91wLn
402Please respect copyright.PENANAhNSgTP7uAp
402Please respect copyright.PENANA1Qa5ADniy5
(圖2)植物普遍需要鉀元素(K)輔助生長,因此天生擁有相應的蛋白質負責吸取泥土的鉀元素。402Please respect copyright.PENANAJsR9K9Ja4P402Please respect copyright.PENANAsTPqlT7SSE
402Please respect copyright.PENANAOhxgbEHkiR
然而基於137Cs與K的特質非常相似,植物不其然間亦會因而吸取了帶有幅射性的137Cs原子。402Please respect copyright.PENANAmpCeWpqhw8
402Please respect copyright.PENANAr7pZd6ZECp
如果往植物施上含鉀元素(K)或銨 (NH4)的肥料,均可大幅度減低植物吸取泥土間137Cs的效率。402Please respect copyright.PENANAZHUwmyagtW
402Please respect copyright.PENANAqn37px3xZT
402Please respect copyright.PENANAOK9bXeDXBr
(圖3)科學家審視2017-2019年美國各地的蜜糖商品,發現122個樣本中並有68個樣本測量出137Cs的存在。402Please respect copyright.PENANAyjesWhTZoA402Please respect copyright.PENANAiHmkXhIBTP
402Please respect copyright.PENANA2jJKAqxlM3
不過其含量非常之低,平均僅約0.03Bq 137Cs kg−1,最高濃度的樣本為19Bq 137Cs kg−1,依然遠低於美國FDA制定的1200Bq 137Cs kg−1安全界線。402Please respect copyright.PENANAh9IhdAwAWk
402Please respect copyright.PENANAo5Qf956gxh
研究還發現,當地蜜糖樣本是否含有137Cs原子,與當地泥土的137Cs含量並無任何關連。402Please respect copyright.PENANAjPVBRiSVVK
402Please respect copyright.PENANAXnTcvhy2Hu
402Please respect copyright.PENANAzaDGYYG4k1
無論如何,核廢理的處理與人類生活健康的議題,均需密切關注,不容忽視。402Please respect copyright.PENANAF31DprZS6O
402Please respect copyright.PENANA6UhmsKe7NE
402Please respect copyright.PENANArPsHyGVOFN
402Please respect copyright.PENANAi1afj4Qexp
402Please respect copyright.PENANAcjcoJlr7Py
402Please respect copyright.PENANAnBuE2vjXOi
如果想我快啲出文的話,請入去Penana網站科普專欄–薯不揀單俾一個like以及Bookmark,這對我非常之重要。402Please respect copyright.PENANAmatXHfaC5B
402Please respect copyright.PENANAHGf93kqQu1
Link: https://www.penana.com/story/66244/%E7%A7%91%E6%99%AE%E5%B0%88%E6%AC%84-%E8%96%AF%E4%B8%8D%E6%8F%80%E5%96%AE/toc402Please respect copyright.PENANANcnxYW3U8p
402Please respect copyright.PENANAv409c6pu9a
同時亦可以在Penana網站裡按「買一嚿/半嚿薯仔」,以課金的方式推動我繼續搜羅資料寫文,多謝。402Please respect copyright.PENANAQZOpHna087
402Please respect copyright.PENANAxZLvMFrgrm
Link:402Please respect copyright.PENANAbj0de3BRH1
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio402Please respect copyright.PENANAXPnlZlQEG5
402Please respect copyright.PENANAQjj3FyaeP5
402Please respect copyright.PENANAuh68Y9Bhhs
除非Facebook及IG重開侵侵的account,否則我的IG將不會再作更新,只會寄居本土LIHKG及Penana。402Please respect copyright.PENANAALQQDpcYzn
402Please respect copyright.PENANAcjR567QidI
Ref1:https://www.nature.com/articles/s41467-021-22081-8#MOESM3402Please respect copyright.PENANAA0kcEJjd99